試題詳解

39.下列那組肌肉收縮時造成吸氣?
(A)內肋間肌(internal intercostal muscle),腹直肌( rectus abdominis muscle)
(B)橫隔膜(diaphragm),外肋間肌(external intercostal muscle)
(C)外肋間肌(external intercostal muscle),腹直肌(rectus abdominismuscle)
(D)腹外斜肌(external oblique abdominis)、胸大肌(pectoralis major)